Originally Posted By: goodman_hunter
high blood pressure will cause them as well, which left uncheck could result in complete kidney failure.


You beat me to it on the blood pressure but it doesn't have to be the text book high. It can just be an elevated BP from your norm which can be due to anything from diet, stress, or lack of sleep. Now here's my nurses statement for the day --- If you are on BP meds make sure you take them and I won't be seeing you for stroke or kidney failure. Besides if you're worried that the meds might affect the lead in your pencil they have meds for that too. So take your BP medications.